A first observation:
The TIE Fighters try to evade missiles.
They definitely behave differently by type.
I tried that mission first in Veteran AI. The version I uploaded uses Top Ace AI, that I have not tested myself so much.
It seems most ship types will attempt some evasive maneuvers before going back on their target.
TRNs, X-Ws, Y-Ws, B-Ws, A-W, T/Bs, T/I and T/F.
There are others that don't do that.
For example, GUNs and SHUs will shoot back and engage the player in dogfighting even when the player is not a primary or secondary objective of theirs, and their orders are to attack the Practice Target.
I have observed some interesting behavior about the group leader.
Destroying the flight leader, promotes the remaining wingmen up. That is, if you kill T/F Alpha 1, then T/F Alpha 2 moves to the leader's position in the formation.
Some times, attacking the leader makes all wingmen target the player, while the leader does evasive maneuvers. The achieves to keep the player focused on the leader while the wingmen place themselves behind the player and attempt to destroy him or her.
Some times, damaging the hull of a ship will make it attempt to go back to their container. This doesn't happen always, only a minority of the times.
We might be seen here the work of some mechanism that randomly selects a tactic from an assortment of them. I wonder if the tactics depend on the kind of orders and target the AI starfighter has.
I say that because in general I have observed a more jealous attitude on torpedo-carrying ships than on missile-carrying ones, regarding their determination to shoot down the ISD.
X-Wings, Y-Wings, B-Wings, TRNs and TIE Bombers suicidally rush towards the ISD, while TIE Fighers, Gunboats, Shuttles and A-Wings seem to be easier to distract from their task.
I might build another test mission where the practice target is a group of starfighters. Maybe in that case, missile-carrying ships will be more interested on destroying them than torpedo-carrying ships.
Also, it seems that ships are more likely to perform evasive maneuvers and counter attack the player when they are out of range from their target, the ISD. But once they are on range of their torpedoes or lasers, they focus quite a lot more on the star destroyer.
I would glady thank if someone could verify or refute my hypotheses here.
So far, at least we have got some evidence of some different reactions being performed by the flight groups as response to the player´s interaction:
1 - Attacked wingman does evasive maneuvers away from their pals, sacrificing himself to give more room to their teammates.
2 - Attacked wingman does evasive maneuvers while keeping on going in the same general direction, trying to survive the attacker's fire while retaining their attention. Meanwhile, other wingmen target the attacker.
3 - Attacked wingman totally ignores incoming fire.
4 - Attacked wingman targets their attacker and totally forgets about their objective until attacker is destroyed.
5 - The whole flight group attacks the attacker, like in 4.